281979

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:139

約数の個数: 24

約数和(自身を含む): 458640

約数和(自身を除く): 176661

約数列:

[1, 3, 9, 17, 19, 51, 57, 97, 153, 171, 291, 323, 873, 969, 1649, 1843, 2907, 4947, 5529, 14841, 16587, 31331, 93993, 281979]

約数ペア:

[(1, 281979), (3, 93993), (9, 31331), (17, 16587), (19, 14841), (51, 5529), (57, 4947), (97, 2907), (153, 1843), (171, 1649), (291, 969), (323, 873)]